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https://issues.apache.org/jira/browse/SOLR-10738?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16023425#comment-16023425
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Shalin Shekhar Mangar commented on SOLR-10738:
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Committed http://git-wip-us.apache.org/repos/asf/lucene-solr/commit/ce7367d5
> TriggerAction is initialised even if the trigger is never scheduled
> -------------------------------------------------------------------
>
> Key: SOLR-10738
> URL: https://issues.apache.org/jira/browse/SOLR-10738
> Project: Solr
> Issue Type: Sub-task
> Security Level: Public(Default Security Level. Issues are Public)
> Components: SolrCloud
> Reporter: Shalin Shekhar Mangar
> Assignee: Shalin Shekhar Mangar
> Fix For: master (7.0)
>
> Attachments: SOLR-10738-fix.patch, SOLR-10738.patch
>
>
> The zk watcher responsible for creating triggers creates them blindly without
> checking if the trigger is actually modified. This is be design as
> ScheduledTriggers.add is a no-op if the trigger being added is unchanged.
> However, since the trigger's actions are initialised in the trigger's
> constructor, they are inited needlessly by the zk watcher thread even though
> we may never schedule those trigger instances (because they are unchanged).
> So I propose to change the TriggerAction lifecycle such that the
> TriggerAction.init is only called when the trigger is actually ready to be
> scheduled.
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